FAQ
TL;DR: In 99% of cases, configuring the Clio III ph2 radio to CBOX0/NAV1 fixes “nav works, no sound.” "At 99%, you need to configure the radio on the 'CBOX0 / NAV1' option." [Elektroda, genek1000, post #16967383]
Quick Facts
- 2010 Clio III ph2 with TomTom uses a “white CAN” interface module between radio and display. [Elektroda, josephm1, post #16963762]
- Correct radio coding via Renault CLIP: NAV1, CBOX0, and typically AMP0 for no external amp. [Elektroda, genek1000, post #16969632]
- A mismatched “white CAN” from another car can block audio functionality. [Elektroda, genek1000, post #16967383]
- Converting to a small factory display requires wiring changes and removing the “white CAN.” [Elektroda, genek1000, post #16967383]
- Swapping ≈6 different head units didn’t fix audio; configuration, not hardware, was the root cause. [Elektroda, josephm1, post #16965246]
How do I fix “navigation works but no sound” on a Clio III ph2?
Code the radio with Renault CLIP to NAV1/CBOX0 and set AMP0 if no external amp. This aligns the head unit, CAN interface, and navigation. “Set the radio to CBOX0/NAV1.” If audio returns, the hardware is fine. If not, re-check module compatibility. [Elektroda, genek1000, post #16969632]
Can I replace the factory TomTom navigation with a regular factory radio and small display?
It’s possible but not plug-and-play. You must modify the wiring and remove the white CAN interface. The simpler path is restoring the original configuration and coding it correctly. That keeps steering-wheel controls and display integration intact. [Elektroda, genek1000, post #16967383]
What is the “white CAN” box in my Clio?
It’s the CAN interface module that links the radio to the TomTom display and the car’s network. Use it only with compatible hardware. A mismatched module can break audio. “Connection to compatible hardware is essential.” [Elektroda, jurekk55, post #16956615]
How do I code the radio with Renault CLIP (quick steps)?
- Connect Renault CLIP and read the head unit configuration.
- Set options: NAV1 (navigation present), CBOX0 (with CAN box), AMP0 (no external amp) as applicable.
- Save, cycle ignition, and test audio and steering controls. [Elektroda, genek1000, post #16969632]
Could a missing Bose/Arkamys amplifier cause no sound?
Yes. If the car had Bose/Arkamys and the amp or its loom is missing, audio will be silent even if navigation works. Inspect for an external amp and update coding accordingly if present. “Someone else may have nibbled on the amplifier.” [Elektroda, SZYMON BYDGOSZCZ, post #16957185]
Do VIN mismatches between the display and radio matter?
Yes. A VIN mismatch can block audio or pairing. One user reports a brand-new service radio still failed because the display VIN conflicted. Align VIN-coded parts or re-code them during CLIP configuration. [Elektroda, josephm1, post #16956639]
My remote works and TomTom runs, so what does that tell me?
Working remote and SD navigation show the navigation module is alive. The fault lies in audio routing or coding, not TomTom content. Focus on radio configuration and CAN interface compatibility. [Elektroda, josephm1, post #16963762]
Is there always a USB or cinch socket near the gear tunnel on this setup?
Not always. Equipment varies by trim. In the reported case, no tunnel connector was present. Lack of that port does not affect the coding steps for restoring audio. [Elektroda, josephm1, post #16965246]
Why does a pre-facelift Clio radio beep when I press buttons?
That beep indicates an incompatible head unit or incorrect coding with the vehicle’s network. Use a compatible unit and set NAV1/CBOX0 in CLIP. The beeping unit came from a pre-lift model and did not integrate. [Elektroda, josephm1, post #16965246]
Should I just go back to the factory hardware?
Yes, that’s the recommended baseline. Restore original modules and then code them correctly. This eliminates wiring changes and preserves OEM features like steering-wheel controls. [Elektroda, jurekk55, post #16956550]
What should I share with a technician to speed diagnosis?
Send the VIN, photos of the radio, display, and the white CAN module. Confirm TomTom model, remote status, and available ports. If service struggles, seek another shop. “PS Change service.” [Elektroda, genek1000, post #16960336]
Is Renault CLIP the right tool for this job?
Yes. CLIP is the required diagnostic tool to set NAV1/CBOX0/AMP0 and pair modules. The helper explicitly confirms using CLIP for configuration. “Yes. Clip.” [Elektroda, genek1000, post #16969632]
What is a CAN bus in this context?
In this thread, CAN refers to the vehicle network path between the radio, navigation, and display via the white CAN interface. Keep the module and harness matched to your hardware during configuration. [Elektroda, SZYMON BYDGOSZCZ, post #16956605]
Edge case: Could a swapped white CAN from another car cause silent audio?
Yes. A foreign white CAN can block correct pairing and mute audio. Replace or re-code to match the car and head unit. “If the white can is from another vehicle, then the white can is too.” [Elektroda, genek1000, post #16967383]
Does replacing the head unit usually fix this issue?
Not necessarily. One owner tried about six radios and still had no sound. Configuration and module matching solved it, not the head unit itself. Prioritize coding before buying parts. [Elektroda, josephm1, post #16965246]
